diff --git a/leads_vec/_bootloader/leads_vec.service.sh b/leads_vec/_bootloader/leads_vec.service.sh
index 50972d9c..088fdd61 100644
--- a/leads_vec/_bootloader/leads_vec.service.sh
+++ b/leads_vec/_bootloader/leads_vec.service.sh
@@ -1,11 +1,11 @@
 #!/bin/bash
 
-if [ ! -x "/usr/local/leads/config.json" ];
+if [ ! -r "/usr/local/leads/config.json" ]
 then
   echo "Error: Config file does not exist"
   exit 1
 fi
-while ! xhost >& /dev/null;
+while ! xhost >& /dev/null
 do sleep 1
 done
 # change the interpreter or adjust the arguments according to your needs
diff --git a/leads_vec/_bootloader/systemd.py b/leads_vec/_bootloader/systemd.py
index 65209d14..c703583e 100644
--- a/leads_vec/_bootloader/systemd.py
+++ b/leads_vec/_bootloader/systemd.py
@@ -15,8 +15,8 @@ def create_service() -> None:
             _mkdir("/usr/local/leads")
         with open("/usr/local/leads/config.json", "w") as f:
             f.write(str(_Config({})))
-    _chmod("/usr/local/leads/config.json", 777)
-    _chmod(script := f"{_abspath(__file__)[:-10]}leads_vec.service.sh", 777)
+    _chmod("/usr/local/leads/config.json", 0x644)
+    _chmod(script := f"{_abspath(__file__)[:-10]}leads_vec.service.sh", 0o755)
     with open("/etc/systemd/system/leads_vec.service", "w") as f:
         f.write(
             "[Unit]\n"
diff --git a/scripts/frp-config.sh b/scripts/frp-config.sh
index e39a8d31..80437a37 100644
--- a/scripts/frp-config.sh
+++ b/scripts/frp-config.sh
@@ -5,15 +5,15 @@ abort() {
   exit 1
 }
 
-if [ "${EUID:-$(id -u)}" -ne 0 ];
+if [ "${EUID:-$(id -u)}" -ne 0 ]
 then abort "Error: This script requires root permission"
 fi
-if ! test -d "/usr/local/frp";
+if ! test -d "/usr/local/frp"
 then abort "Error: /usr/local/frp not found"
 fi
 
 execute() {
-  if ! "$@";
+  if ! "$@"
   then abort "$(printf "Failed: %s" "$@")"
   fi
 }
@@ -23,14 +23,14 @@ execute_root() {
 }
 
 require_argument() {
-  if [ -n "$1" ];
+  if [ -n "$1" ]
   then echo "$1"
   else abort "Required argument $2 does not exist"
   fi
 }
 
 argument_exists_or() {
-  if [ -n "$1" ];
+  if [ -n "$1" ]
   then echo "$1"
   else echo "$2"
   fi
diff --git a/scripts/frp-install.sh b/scripts/frp-install.sh
index 2c5b6b25..24ad807c 100644
--- a/scripts/frp-install.sh
+++ b/scripts/frp-install.sh
@@ -5,16 +5,16 @@ abort() {
   exit 1
 }
 
-if [ "${EUID:-$(id -u)}" -ne 0 ];
+if [ "${EUID:-$(id -u)}" -ne 0 ]
 then abort "Error: This script requires root permission"
 fi
 
-if test -d "/usr/local/frp";
+if test -d "/usr/local/frp"
 then abort "Error: /usr/local/frp already exists"
 fi
 
 execute() {
-  if ! "$@";
+  if ! "$@"
   then abort "$(printf "Failed: %s" "$@")"
   fi
 }
@@ -23,13 +23,13 @@ execute_root() {
   execute "sudo" "$@"
 }
 
-if ! command -v curl > /dev/null;
+if ! command -v curl > /dev/null
 then
   echo "cURL is not available, installing..."
   execute_root "apt" "install" "-y" "curl"
 fi
 latest_release=$(curl -s "https://api.github.com/repos/fatedier/frp/releases/latest" | grep -o '"tag_name": "[^"]*' | grep -o '[^"]*$' | cut -c 2-)
-if [ -z "$latest_release" ];
+if [ -z "$latest_release" ]
 then abort "Failed to retrieve the latest release"
 fi
 filename="frp_${latest_release}_$(uname -s | tr '[:upper:]' '[:lower:]')_$(uname -m)"
diff --git a/scripts/obs-install.sh b/scripts/obs-install.sh
index 10978c71..a11dd4af 100644
--- a/scripts/obs-install.sh
+++ b/scripts/obs-install.sh
@@ -5,12 +5,12 @@ abort() {
   exit 1
 }
 
-if [ "${EUID:-$(id -u)}" -ne 0 ];
+if [ "${EUID:-$(id -u)}" -ne 0 ]
 then abort "Error: This script requires root permission"
 fi
 
 execute() {
-  if ! "$@";
+  if ! "$@"
   then abort "$(printf "Failed: %s" "$@")"
   fi
 }
diff --git a/scripts/obs-run.sh b/scripts/obs-run.sh
index 87047950..d08b71c5 100644
--- a/scripts/obs-run.sh
+++ b/scripts/obs-run.sh
@@ -5,12 +5,12 @@ abort() {
   exit 1
 }
 
-if [ "${EUID:-$(id -u)}" -ne 0 ];
+if [ "${EUID:-$(id -u)}" -ne 0 ]
 then abort "Error: This script requires root permission"
 fi
 
 execute() {
-  if ! "$@";
+  if ! "$@"
   then abort "$(printf "Failed: %s" "$@")"
   fi
 }
diff --git a/scripts/python-install.sh b/scripts/python-install.sh
index 6a50a07d..33bf3d0c 100644
--- a/scripts/python-install.sh
+++ b/scripts/python-install.sh
@@ -5,12 +5,12 @@ abort() {
   exit 1
 }
 
-if [ "${EUID:-$(id -u)}" -ne 0 ];
+if [ "${EUID:-$(id -u)}" -ne 0 ]
 then abort "Error: This script requires root permission"
 fi
 
 execute() {
-  if ! "$@";
+  if ! "$@"
   then abort "$(printf "Failed: %s" "$@")"
   fi
 }
diff --git a/scripts/setup.sh b/scripts/setup.sh
index 6c7ea570..2d1f95ae 100644
--- a/scripts/setup.sh
+++ b/scripts/setup.sh
@@ -5,12 +5,12 @@ abort() {
   exit 1
 }
 
-if [ "${EUID:-$(id -u)}" -ne 0 ];
+if [ "${EUID:-$(id -u)}" -ne 0 ]
 then abort "Error: This script requires root permission"
 fi
 
 execute() {
-  if ! "$@";
+  if ! "$@"
   then abort "$(printf "Failed: %s" "$@")"
   fi
 }